Relationship between chromosomal aberration of germ cells and dominant lethal mutation in male mice after low dosage of X-irradiation

Dominant lethal mutation in mice induced by low dose tritiated water

低剂量氚水诱发雄性小鼠显性致死突变的研究

Theeffect of dominant lethal mutation is higher than that of the aneuploid.

显性致死突变的效应比非整倍体胚胎的效应高。

Conclusions: Radiotherapy is the first choice for lethal midline granuloma. The recommended dose is 50~ 60Gy for 5~ 6 weeks. Chemotherapy can improve the symptoms, but can not increase the survival rate.

结论：放疗是恶性肉芽肿首选治疗方法，肿瘤量以50～60Gy／5～6w为宜，化疗可改善症状但不提高远期生存率。

The results showed 100% positive reaction in the patients with nasopharyngeal carcinoma, lethal midline granuloma and tonsillar malignant lymphoma;

结果表明：鼻咽癌、恶性肉芽肿和扁桃体恶性淋巴瘤病人全部阳性，其他如喉癌、鼻腔鼻窦癌、甲状腺癌等病人中也有部分阳性结果。

Objective: To retrospectively analyze the effect of radiotherapy for 30 cases of lethal midline granuloma and prognostic factors.

目的：回顾性分析30例恶性肉芽肿放射治疗效果和与预后有关的因素。

Nasal NK/ T-cell lymphoma was named as malignant midline reticulosis, polymorphic reticulosis, lethal midline granuloma, malignant granuloma, necrosis granuloma, angiocentric T-cell lymphoma, T-cell lymphoma of midline, peripheral T-cell lymphoma of midline etc in the past.

旧称中线恶性网状细胞增生症、多形性网状细胞增生症、致死性中线肉芽肿、恶性肉芽肿、坏死性肉芽肿、血管中心性T细胞淋巴瘤、中线T细胞淋巴瘤及中线外周T细胞淋巴瘤等。

Research on MLD Modeling and Simulation of a Class of Integrated Control Systems

一类综合控制系统的MLD建模与仿真研究

Control and Formal Verification of Hybrid System Using MLD Model

基于MLD模型的混杂系统控制及其形式验证研究

Control Technology for Volatile Organic Compounds Treatment Based on MLD Model

基于混合逻辑动态模型的工业有机废气处理控制技术

Improvement of Optimal Algorithm for Hybrid System Based on MLD Model

混杂系统的MLD建模及其优化算法的改进

Simulation results demonstrate that transform domain excision technique based on MLT can significantly improve the system performance.

仿真结果表明，基于MLT的变换域处理方案可以有效地改善系统性能。

No significant difference of MLT was found between male and female.

男女性黄斑光阈值无显著性差异。

In this paper we reported the preparing the Good-Sleep ( MLT) capsule, examining the function of aid sleep, and evaluating safety and toxicology of the product in some aspects.

报道了安梦（褪黑素）胶囊的研制，考察了其助眠功能，并进行了部分安全毒理学评价。

The Toxicological Evaluation on the Substance of the Good-sleep ( MLT) Capsules in Rat

安梦（褪黑素）胶囊安全毒理学评价

Upper incipient lethal temperature of short term thermal shock of two species of copepods ( 2) Initial temperature of catalyst bed is wholly too high.

两种桡足类短期热冲击的高起始致死温度值（2）提高起始反应温度使催化剂床层温度整体过高导致飞温。

The upper lethal temperature of the spat was 40 ℃.

稚贝对低温（5℃至2℃）有很强的忍耐性，致死温度上限是40℃。

It is summarized that the seedling's tolerance of half lethal salt concentration, the seed vigour index, and the seed nitrogen content could be regarded as the physiological index for assessing the level of the seed salt tolerance and whether it be selected for breeding.

初步认为种子耐盐半致死浓度、种子活力指数和含氮量可以作为种子耐盐性评价和选育的生理指标。

The half lethal concentration of 48? h-LC_ ( 50) of 21 nitrobenzenes to Daphnia carinata was determined by use of the standard test method, and the range of toxicity was from 3.49 for nitrobenzene to 5.40 for 1,4-dinitrobenzene.

采用标准实验方法测定了21种硝基苯类化合物对隆线蚤（Daphnia carinata）的48h半致死浓度值，结果lg（1/LC50）的范围在349～540之间；

The phenols content is high and the median lethal temperature is low, then cold resistance is strong in the green up period, fist period of exuberance and withering period.

在高寒植物的返青期、草盛前期和枯黄期，酚类物质含量高，半致死温度低，抗寒性强；

The cold resistance of the 6 spices alpine plants varies with air temperature. The change curve of the median lethal temperature is a single peak.

在整个生育期内，6种高寒植物的抗寒性具有随环境温度变化而改变的特性，它们的半致死温度的呈单峰变化趋势。